diff --git a/ChangeLog b/ChangeLog
index 4525df1a0..cebc29f22 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -18,6 +18,13 @@ $Source$
       Patch Tracker #709383 for further information.
     * libraries/display_tbl.lib.php3: Bug #728813 (title for
       relations when foreign_db != master_db)
+    * index.php3, left.php3, tbl_query_box.php3, db_details_common.php3,
+      main.php3, queryframe.php3, libraries/common.lib.php3: Should be 
+      the fix for Bug #730718.
+      Moved the hashform from the "nav"-frame to the "queryframe"-frame,
+      altered the way the form is submitted in LeftFrameLight mode to
+      keep the queryframe. Only if JavaScript is usable, otherwise it's
+      not necessary to keep the 'opener' pointer.
 
 2003-04-30 Marc Delisle  <lem9@users.sourceforge.net>
     * pdf_schema.php3, bug 729517, better comment output,
diff --git a/db_details_common.php3 b/db_details_common.php3
index 0cfe0dc4d..9e62e8f1f 100644
--- a/db_details_common.php3
+++ b/db_details_common.php3
@@ -47,7 +47,7 @@ if (!isset($message)) {
         ?>
 <script type="text/javascript" language="javascript1.2">
 <!--
-window.parent.frames['nav'].location.replace('./left.php3?<?php echo PMA_generate_common_url($db, '', '&'); ?>&hash=' + window.parent.frames['nav'].document.hashform.hash.value);
+window.parent.frames['nav'].location.replace('./left.php3?<?php echo PMA_generate_common_url($db, '', '&'); ?>');
 //-->
 </script>
         <?php
diff --git a/index.php3 b/index.php3
index d55406d53..6a9ef3eb3 100755
--- a/index.php3
+++ b/index.php3
@@ -82,7 +82,7 @@ $phpmain_hash_js = time();
 <?php
 } else {
 ?>
-    <frame src="left.php3?<?php echo $url_query; ?>&amp;hash=<?php echo $phpmain_hash; ?>" name="nav" frameborder="0" />
+    <frame src="left.php3?<?php echo $url_query; ?>&amp;hash=' . $phpmain_hash . '" name="nav" frameborder="0" />
 <?php
 }
 ?>
diff --git a/left.php3 b/left.php3
index 86402105f..7498e020f 100755
--- a/left.php3
+++ b/left.php3
@@ -8,6 +8,10 @@
  * been defined as startup option and include a core library
  */
 require('./libraries/grab_globals.lib.php3');
+if (isset($lightm_db) && !empty($lightm_db)) {
+    $db = urldecode($lightm_db);
+}
+
 if (!empty($db)) {
     $db_start = $db;
 }
@@ -61,6 +65,19 @@ PMA_setFontSizes();
     <title>phpMyAdmin</title>
     <meta http-equiv="Content-Type" content="text/html; charset=<?php echo $charset; ?>" />
     <base<?php if (!empty($cfg['PmaAbsoluteUri'])) echo ' href="' . $cfg['PmaAbsoluteUri'] . '"'; ?> target="phpmain<?php echo $hash; ?>" />
+
+    <script type="text/javascript" language="javascript">
+    <!--
+<?php
+if (isset($lightm_db) && !empty($lightm_db)) {
+?>
+    window.parent.frames['phpmain<?php echo $hash; ?>'].location.replace('./<?php echo $cfg['DefaultTabDatabase'] . '?' . PMA_generate_common_url($db, '', '&');?>');
+<?php 
+}
+?>
+    //-->
+    </script>
+
 <?php
 // Expandable/collapsible databases list is only used if there is more than one
 // database to display
@@ -155,8 +172,16 @@ if ($num_dbs > 1) {
 
     // Light mode -> beginning of the select combo for databases
     if ($cfg['LeftFrameLight']) {
-        echo '    <form method="post" action="index.php3" name="left" target="_parent">' . "\n";
+        ?>
+        <script type="text/javascript" language="javascript">
+            document.writeln('<form method="post" action="left.php3" name="left" target="nav">');
+        </script>
+        <noscript>
+            <form method="post" action="index.php3" name="left" target="_parent">
+        </noscript>
+        <?php
         echo PMA_generate_common_hidden_inputs();
+        echo '        <input type="hidden" name="hash" value="' . $hash . '" />' . "\n";
         echo '        <select name="lightm_db" onchange="this.form.submit()">' . "\n";
         echo '            <option value="">(' . $strDatabases . ') ...</option>' . "\n";
         $table_list = '';
@@ -439,9 +464,6 @@ else {
 echo "\n";
 ?>
 
-<form name="hashform" action="left.php3">
-    <input type="hidden" name="hash" value="<?php echo $hash; ?>">
-</form>
 </body>
 </html>
 
diff --git a/libraries/common.lib.php3 b/libraries/common.lib.php3
index 675196b71..e70be9b99 100644
--- a/libraries/common.lib.php3
+++ b/libraries/common.lib.php3
@@ -1267,7 +1267,7 @@ h1    {font-family: sans-serif; font-size: large; font-weight: bold}
     <!--
     if (typeof(window.parent) != 'undefined'
         && typeof(window.parent.frames['nav']) != 'undefined') {
-        window.parent.frames['nav'].location.replace('<?php echo $reload_url; ?>&hash=' + window.parent.frames['nav'].document.hashform.hash.value);
+        window.parent.frames['nav'].location.replace('<?php echo $reload_url; ?>');
     }
     //-->
     </script>
diff --git a/main.php3 b/main.php3
index 08aa211e7..63890bc73 100755
--- a/main.php3
+++ b/main.php3
@@ -43,7 +43,7 @@ else if (isset($reload) && $reload) {
     ?>
 <script type="text/javascript" language="javascript1.2">
 <!--
-window.parent.frames['nav'].location.replace('./left.php3?<?php echo PMA_generate_common_url('', '', '&'); ?>&hash=' + window.parent.frames['nav'].document.hashform.hash.value);
+window.parent.frames['nav'].location.replace('./left.php3?<?php echo PMA_generate_common_url('', '', '&');?>');
 //-->
 </script>
     <?php
diff --git a/queryframe.php3 b/queryframe.php3
index edbebe2c0..92808fec0 100644
--- a/queryframe.php3
+++ b/queryframe.php3
@@ -104,6 +104,9 @@ document.writeln('<a href="<?php echo $href; ?>" <?php echo $target . ' ' . $onc
 </noscript>
 </center>
 
+<form name="hashform" action="queryframe.php3">
+    <input type="hidden" name="hash" value="<?php echo $hash; ?>">
+</form>
 </body>
 </html>
 
diff --git a/tbl_query_box.php3 b/tbl_query_box.php3
index e1fb3ab2a..c29f62c51 100755
--- a/tbl_query_box.php3
+++ b/tbl_query_box.php3
@@ -81,7 +81,7 @@ if ($cfg['QueryFrame'] && $cfg['QueryFrameJS']) {
 ?>
         <script type="text/javascript">
         <!--
-        document.writeln('<form method="post" target="phpmain' +  <?php echo ((isset($is_inside_querywindow) && $is_inside_querywindow == TRUE) ? 'opener.' : ''); ?>top.frames.nav.document.hashform.hash.value + '" action="read_dump.php3"<?php if ($is_upload) echo ' enctype="multipart/form-data"'; ?> onsubmit="return checkSqlQuery(this)" name="sqlform">');
+        document.writeln('<form method="post" target="phpmain' +  <?php echo ((isset($is_inside_querywindow) && $is_inside_querywindow == TRUE) ? 'opener.' : '');?>top.frames.queryframe.document.hashform.hash.value + '" action="read_dump.php3"<?php if ($is_upload) echo ' enctype="multipart/form-data"'; ?> onsubmit="return checkSqlQuery(this)" name="sqlform">');
         //-->
         </script>
         <noscript>
@@ -297,7 +297,7 @@ if (!isset($is_inside_querywindow) ||
             ?>
 
             <script type="text/javascript">
-                document.writeln('<div style="margin-bottom: 10px"><a href="<?php echo (isset($is_inside_querywindow) && $is_inside_querywindow == TRUE ? '#' : $ldi_target); ?>" <?php echo (isset($is_inside_querywindow) && $is_inside_querywindow == TRUE ? 'onclick="opener.top.frames.phpmain\' + opener.top.frames.nav.document.hashform.hash.value + \'.location.href = \\\'' . $ldi_target . '\\\'; return false;"' : ''); ?>><?php echo addslashes($strInsertTextfiles); ?></a></div>');
+                document.writeln('<div style="margin-bottom: 10px"><a href="<?php echo (isset($is_inside_querywindow) && $is_inside_querywindow == TRUE ? '#' : $ldi_target); ?>" <?php echo (isset($is_inside_querywindow) && $is_inside_querywindow == TRUE ? 'onclick="opener.top.frames.phpmain\' + opener.top.frames.queryframe.document.hashform.hash.value + \'.location.href = \\\'' . $ldi_target . '\\\'; return false;"' : ''); ?>><?php echo addslashes($strInsertTextfiles); ?></a></div>');
             </script>
             
             <?php